There's a very exact reason why I do not highly recommend any budget speakers. It's because in the reproduction of audio inside the car, speakers aren't your main enemy.. it's your environment. I daresay more than a thousand of my total Tsikot post count revolves around it. It's like playing an first-person shooter game armed with a keyboard but without a mouse to aim the crosshair. You're doing it wrong.

If anybody wants any proof, the most important in a car is DSP or any form of signal processing. I'll go snatch from files from Harman International's white papers.

BELOW is a near-field measurement of a speaker just taken a few centimeters away from a woofer.



BELOW is the measurement of a speaker that's taken at the driver's seat.



Sure, good speakers helps. But you're simply throwing money away in most cases.